7. The inversion reaction of sucrose in acidic medium is; C12H22011(aq) + H20M "(ae CH1206(a0) + C,H1206(aq) 10 g sucrose was first dissolved with small amount of distilled water in a beaker and diluted to 100 mL in a volumetric flask. Then, 100 mL of 1 M HCIl solution was added to the sucrose solution and mix well. The sample solution was put into the polarimeter and the optical rotations of sucrose solution in acidic medium at various times were found as in the table (20 min.). Time (sec) 0 Angle (*) +24.09 7 18 27 +21.70 +17.70 +15.00 -10.74 a) Show that the inversion reaction of sucrose is first order according to the graph. b) Calculate the rate constant of the reaction. c) Write the rate equation of the reaction.

7. The inversion reaction of sucrose in acidic medium is; C12H22011(aq) + H20M "(ae CH1206(a0) + C,H1206(aq) 10 g sucrose was first dissolved with small amount of distilled water in a beaker and diluted to 100 mL in a volumetric flask. Then, 100 mL of 1 M HCIl solution was added to the sucrose solution and mix well. The sample solution was put into the polarimeter and the optical rotations of sucrose solution in acidic medium at various times were found as in the table (20 min.). Time (sec) 0 Angle (*) +24.09 7 18 27 +21.70 +17.70 +15.00 -10.74 a) Show that the inversion reaction of sucrose is first order according to the graph. b) Calculate the rate constant of the reaction. c) Write the rate equation of the reaction.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter11: Chemical Kinetics: Rates Of Reactions

Section: Chapter Questions

Problem 83QRT

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